222.203.0.0/16

AS4538  ·  China Education and Research Network Center

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Summary

Country China
Domain cernet.edu.cn
ASN AS4538
Registry APNIC
ID GZR-CERNET

WHOIS Details

inetnum:        222.200.0.0 - 222.203.255.255
netname:        GZR-CERNET
descr:          China Education and Research Network
descr:          Guangzhou Regional Network
country:        CN
admin-c:        CER-AP
tech-c:         CER-AP
abuse-c:        AC1685-AP
status:         ALLOCATED PORTABLE
remarks:        origin AS4538
remarks:        confederation
remarks:        --------------------------------------------------------
remarks:        To report network abuse, please contact mnt-irt
remarks:        For troubleshooting, please contact tech-c and admin-c
remarks:        Report invalid contact via www.apnic.net/invalidcontact
remarks:        --------------------------------------------------------
mnt-by:         APNIC-HM
mnt-lower:      MAINT-CERNET-AP
mnt-routes:     MAINT-CERNET-AP
mnt-irt:        IRT-CERNET-AP
last-modified:  2020-09-03T09:16:13Z
source:         APNIC

irt:            IRT-CERNET-AP
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
fax-no:         +86-10-62785933
e-mail:         [email protected]
abuse-mailbox:  [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
auth:           # Filtered
remarks:        timezone GMT+8
remarks:        http://www.ccert.edu.cn
remarks:        [email protected] was validated on 2025-08-15
mnt-by:         MAINT-CERNET-AP
last-modified:  2025-11-18T00:26:28Z
source:         APNIC

role:           ABUSE CERNETAP
country:        ZZ
address:        Network Research Center,
address:        Main Bldg, Tsinghua Univ
address:        Beijing 100084, China
phone:          +86-10-62784301
e-mail:         [email protected]
admin-c:        CER-AP
tech-c:         CER-AP
nic-hdl:        AC1685-AP
remarks:        Generated from irt object IRT-CERNET-AP
remarks:        [email protected] was validated on 2025-08-15
abuse-mailbox:  [email protected]
mnt-by:         APNIC-ABUSE
last-modified:  2025-08-15T09:38:28Z
source:         APNIC

role:           CERNET Helpdesk
address:        CERNET Center
address:        Beijing 100084, China
country:        CN
phone:          +86-10-6278-4049
fax-no:         +86-10-6278-5933
e-mail:         [email protected]
remarks:        [email protected]
admin-c:        XL1-CN
tech-c:         SZ2-AP
nic-hdl:        CER-AP
mnt-by:         MAINT-CERNET-AP
last-modified:  2020-09-03T09:14:12Z
source:         APNIC

Nearby Ranges

BGP prefixes that overlap with 222.0.0.0/8

Range ASN Company Num of IPs
222.96.0.0/12 AS4766 Korea Telecom 1,048,576
222.96.0.0/12 AS17841 Korea Telecom 1,048,576
222.96.0.0/12 AS9978 Korea Telecom 1,048,576
222.184.0.0/13 AS4809 CHINANET jiangsu province network 524,288
222.240.0.0/13 AS63838 CHINANET Hunan province network 524,288
222.232.0.0/13 AS9318 SK Broadband Co Ltd 524,288
222.208.0.0/13 AS139220 CHINANET Sichuan province network 524,288
222.176.0.0/13 AS134420 CHINANET Chongqing province network 524,288
222.184.0.0/13 AS140293 CHINANET jiangsu province network 524,288
222.184.0.0/13 AS4134 CHINANET jiangsu province network 524,288
222.144.0.0/13 AS4713 NTT DOCOMO BUSINESS,Inc. 524,288
222.208.0.0/13 AS38283 CHINANET Sichuan province network 524,288
222.208.0.0/13 AS4134 CHINANET Sichuan province network 524,288
222.240.0.0/13 AS4134 CHINANET Hunan province network 524,288
222.184.0.0/13 AS146966 CHINANET jiangsu province network 524,288
222.184.0.0/13 AS140292 CHINANET jiangsu province network 524,288
222.232.0.0/13 AS45370 SK Broadband Co Ltd 524,288
222.184.0.0/13 AS137697 CHINANET jiangsu province network 524,288
222.112.0.0/13 AS4766 Korea Telecom 524,288
222.176.0.0/13 AS4134 CHINANET Chongqing province network 524,288
222.240.0.0/13 AS149979 CHINANET Hunan province network 524,288
222.136.0.0/13 AS4837 China Unicom Henan province network 524,288
222.92.0.0/14 AS134756 CHINANET jiangsu province network 262,144
222.76.0.0/14 AS4134 CHINANET fujian province network 262,144
222.92.0.0/14 AS4134 CHINANET jiangsu province network 262,144
222.76.0.0/14 AS133774 CHINANET fujian province network 262,144
222.28.0.0/14 AS4538 China Education and Research Network 262,144
222.92.0.0/14 AS140292 CHINANET jiangsu province network 262,144
222.76.0.0/14 AS133776 CHINANET fujian province network 262,144
222.132.0.0/14 AS4837 China Unicom Shandong province network 262,144
222.128.0.0/14 AS4808 China Unicom Beijing province network 262,144
222.92.0.0/14 AS4809 CHINANET jiangsu province network 262,144
222.222.0.0/15 AS136197 CHINANET hebei province network 131,072
222.222.0.0/15 AS4134 CHINANET hebei province network 131,072
222.88.0.0/15 AS4134 CHINANET henan province network 131,072
222.168.0.0/15 AS4134 CHINANET Jilin province network 131,072
222.120.0.0/15 AS4766 Korea Telecom 131,072
222.248.0.0/16 AS17962 ShenZhen Topway Video Communication Co. Ltd. 65,536
222.125.0.0/16 AS17962 ShenZhen Topway Video Communication Co. Ltd. 65,536
222.8.0.0/16 AS2516 KDDI CORPORATION 65,536
222.225.0.0/16 AS2516 KDDI CORPORATION 65,536
222.159.0.0/16 AS7679 QTnet,Inc. 65,536
222.74.0.0/16 AS4134 CHINANET neimeng province network 65,536
222.124.0.0/16 AS7713 PT. TELEKOMUNIKASI INDONESIA 65,536
222.199.0.0/16 AS4538 China Education and Research Network 65,536
222.122.0.0/16 AS4766 Korea Telecom 65,536
222.230.0.0/16 AS2519 ARTERIA Networks Corporation 65,536
222.127.0.0/16 AS26344 Globe Telecom/Innove Communication 65,536
222.75.0.0/16 AS4134 CHINANET ningxia province network 65,536
222.127.0.0/16 AS4775 Globe Telecom/Innove Communication 65,536

Hosted domains

There are 7 domain names hosted across 5 IP addresses on this ASN. Checkout our API to access full domain hosting information.

IP Address Domain Domains on this IP
222.203.170.51 gzhyxx.com 2
222.203.56.3 lzpu.edu.cn 1
222.203.56.1 lzzy.edu.cn 1

Hosted domains API

Our Hosted Domains API, or Reverse IP API returns a full list of domains that are hosted on a single IP address.
Useful for Cybersecurity

Pingable IPs

1,794 IPs in this range replied to an ICMP ping during our most recent internet scan. Learn more.

IP Address ASN Details
222.203.21.61 AS4538 China Education and Research Network Center 19.40ms from Guangzhou, CN
222.203.10.166 AS4538 China Education and Research Network Center 19.29ms from Guangzhou, CN
222.203.52.8 AS4538 China Education and Research Network Center 29.69ms from Guangzhou, CN
222.203.208.40 AS4538 China Education and Research Network Center 13.17ms from Guangzhou, CN
222.203.61.182 AS4538 China Education and Research Network Center 29.15ms from Hong Kong, HK
222.203.241.252 AS4538 China Education and Research Network Center 14.17ms from Guangzhou, CN
222.203.23.175 AS4538 China Education and Research Network Center 19.23ms from Guangzhou, CN
222.203.5.23 AS4538 China Education and Research Network Center 19.58ms from Guangzhou, CN
222.203.244.200 AS4538 China Education and Research Network Center 20.75ms from Guangzhou, CN
222.203.217.1 AS4538 China Education and Research Network Center 18.67ms from Guangzhou, CN
222.203.176.21 AS4538 China Education and Research Network Center 2.11ms from Guangzhou, CN
222.203.26.67 AS4538 China Education and Research Network Center 20.10ms from Guangzhou, CN
222.203.219.222 AS4538 China Education and Research Network Center 20.89ms from Guangzhou, CN
222.203.220.7 AS4538 China Education and Research Network Center 20.48ms from Shenzhen, CN
222.203.243.1 AS4538 China Education and Research Network Center 15.69ms from Guangzhou, CN
222.203.7.16 AS4538 China Education and Research Network Center 19.68ms from Guangzhou, CN
222.203.232.9 AS4538 China Education and Research Network Center 13.05ms from Guangzhou, CN
222.203.18.12 AS4538 China Education and Research Network Center 19.82ms from Guangzhou, CN
222.203.242.108 AS4538 China Education and Research Network Center 14.17ms from Guangzhou, CN
222.203.0.4 AS4538 China Education and Research Network Center 20.42ms from Guangzhou, CN
222.203.17.239 AS4538 China Education and Research Network Center 19.81ms from Guangzhou, CN
222.203.60.83 AS4538 China Education and Research Network Center 27.73ms from Shenzhen, CN
222.203.4.82 AS4538 China Education and Research Network Center 19.41ms from Guangzhou, CN
222.203.62.1 AS4538 China Education and Research Network Center 38.13ms from Guangzhou, CN
222.203.8.250 AS4538 China Education and Research Network Center 19.89ms from Guangzhou, CN

Other Pingable IPs

Below is a random selection of 25 IPs that replied to an ICMP ping during our most recent internet scan.

IP Address ASN Details
40.130.29.32 AS7029 Windstream Communications LLC 0.50ms from Ashburn, US
160.177.44.80 AS36903 Office National des Postes et Telecommunications ONPT (Maroc Telecom) / IAM 11.86ms from Casablanca, MA
47.185.204.240 AS5650 Frontier Communications of America, Inc. 1.80ms from Dallas, US
189.178.103.176 AS8151 UNINET 0.85ms from Guadalajara, MX
176.88.228.224 AS34984 Superonline Iletisim Hizmetleri A.S. 3.16ms from Istanbul, TR
79.251.180.96 AS3320 Deutsche Telekom AG 7.17ms from Nuernberg, DE
27.207.97.160 AS4837 CHINA UNICOM China169 Backbone 7.41ms from Qingdao, CN
69.8.248.96 AS209 CenturyLink Communications, LLC 0.66ms from Seattle, US
173.238.77.128 AS7992 Cogeco Connexion Inc. 9.28ms from Toronto, CA
185.224.120.32 AS24953 NETPLANET GmbH 0.58ms from Vienna, AT
68.81.143.64 AS7922 Comcast Cable Communications, LLC 4.90ms from Ashburn, US
173.89.18.96 AS10796 Charter Communications Inc 7.11ms from Chicago, US
192.24.146.64 AS6181 Cincinnati Bell Telephone Company LLC 2.60ms from Cincinnati, US
74.205.66.16 AS33070 Rackspace Hosting 1.02ms from Dallas, US
45.253.118.240 AS45062 Netease-Network 5.14ms from Hangzhou, CN
43.239.204.160 AS138663 AVM Cloud Sdn. Bhd. 0.97ms from Kuala Lumpur, MY
178.193.245.160 AS3303 Swisscom (Switzerland) Ltd 0.68ms from Lausanne, CH
42.5.97.192 AS4837 CHINA UNICOM China169 Backbone 4.03ms from Liaoyang, CN
80.183.99.64 AS3269 Telecom Italia S.p.A. 5.27ms from Milan, IT
75.115.148.48 AS33363 Charter Communications, Inc 8.37ms from Orlando, US
123.109.214.0 AS38095 SK Broadband Co Ltd 1.72ms from Seoul, KR
172.188.171.80 AS8075 Microsoft Corporation 0.53ms from Singapore, SG
150.195.171.80 AS398113 Gateway Fiber LLC 1.94ms from St. Louis, US
92.34.53.112 AS8434 Telenor Sverige AB 3.17ms from Stockholm, SE
59.115.208.144 AS3462 Data Communication Business Group 0.88ms from Taipei, TW

Traceroute

Below is a recent traceroute taken from the IPinfo ProbeNet to an IP in this range. Learn more.

$
traceroute -a -n -q1 -f5 222.203.5.208
traceroute to 222.203.5.208 (222.203.5.208): 64 hops max, 52 byte packets
5 [AS749] 11.94.155.65 1.047 ms
6 [AS4538] 101.4.137.45 2.339 ms
7 *
9 [AS4538] 101.4.118.154 15.243 ms
10 *
11 [AS4538] 101.4.114.73 20.655 ms
12 *
13 *
14 *
15 *
16 *
17 [AS4538] 222.203.5.208 21.271 ms
Measurement taken from IPinfo ProbeNet in Guangzhou, CN
On

What are IP address ranges?

IP address ranges, or netblocks, are groups of related IP addresses. They are usually represented as a base IP address, followed by a slash, and then a netmask which represents how many IP addresses are contained within the netblock. This format is known as CIDR. You'll also sometimes see netblocks given as a start ip address, and an end ip address, or an ip address range.

Traffic works its way around the internet based on the routing table, which contains a list of networks and their associated netblocks.

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